import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/pages/login/Login'
import Home from '../components/pages/home/Home'
import Welcome from '../components/pages/welcome/Welcome'
import Users from '../components/pages/user/Users'
import Authoritys from '../components/pages/power/authority/Authoritys'
import Roles from '../components/pages/power/role/Roles'

Vue.use(VueRouter)

const routes = [
  {
    path: '/',
    redirect: '/login'
  },
  {
    path: '/login',
    component: Login
  },
  {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [
      {
        path: '/welcome',
        component: Welcome
      },
      {
        path: '/users',
        component: Users
      },
      {
        path: '/users',
        component: Users
      },
      {
        path: '/rights',
        component: Authoritys
      },
      {
        path: '/roles',
        component: Roles
      }
    ]
  }
]

const router = new VueRouter({
  mode: 'history',
  base: process.env.BASE_URL,
  routes
})

// 挂载路由导航
router.beforeEach((to, from, next) => {
  // to 将访问哪一个路径
  // from 代表从哪个路径跳转而来
  // next 是一个函数,表示放行
  //   next() 放行 next('/login') 强制跳转
  if (to.path === '/login') return next()
  // 获取token
  const token = window.sessionStorage.getItem('token')
  if (!token) return next('/login')
  next()
})

export default router
